The Falcon Q330-271 is the OEM Non-Locking Spring Cage Kit for the Falcon T Series cylindrical lock, documented in the official Falcon T Series Service Manual (doc 108002). The Q330-271 serves two distinct roles within the T Series trim catalog: it functions as the inside spring cage for all T Series functions except T411, and it functions as the outside spring cage specifically for T101 (passage), T291 (hospital privacy), and T301 (privacy). The SecurityParts.com notation "For 101 And 301 Only" identifies the outside lever position restriction. For all keyed and locking functions in the T Series, a different kit (Q330-270) provides the outside spring cage. In stock.

Falcon T Series Spring Cage Kit: Dual Role of the Q330-271

Understanding how the Q330-271 fits into the T Series spring cage system prevents misidentification when ordering. The service manual specifies its application precisely:

Inside lever position: The Q330-271 is the inside spring cage for every T Series function except T411 (asylum lock). This includes T101, T291, T301, T351, T381, T501, T511, T521, T561, T571, T581, T851, T881, and all IC variants of these functions. For every one of these functions, the Q330-271 provides the inside lever return spring and catch mechanism.

Outside lever position: The Q330-271 is the outside spring cage only for T101 (passage), T291 (hospital privacy), and T301 (privacy). These three functions have no key cylinder in the outside lever trim, which is why their outside lever uses the non-locking spring cage format. For all other T Series functions that have a key cylinder in the outside lever (T351, T381, T501, T511, T521, T561, T571, T581, T851, T881 and IC variants), the outside lever uses the Q330-270 with its outside torque plate.

The service manual also notes that a light film of grease should be applied to all contact surfaces with a brush during spring cage installation or replacement.

Falcon Q330-271 vs Q330-270: Selecting the Correct Spring Cage Kit

The Allegion Knowledge Base and T Series Service Manual document both spring cage kits in the T Series catalog. The distinction determines which kit handles the outside lever position on each function:

Q330-271 (this product) = Non-locking spring cage kit. Inside for all T Series functions except T411. Outside for T101, T291, and T301 only. No outside torque plate.

Q330-270 = T Lock Spring Cage Kit. Inside for T411 only. Outside for all T Series functions EXCEPT T101, T291, and T301. Includes an outside torque plate. This is the outside spring cage for all keyed functions (T351 through T881 and IC variants).

The torque plate in the Q330-270 is what differentiates the two kits for outside lever application. Keyed functions (KIL and IC formats) transmit mechanical force through the outside lever from the key rotation and cylinder cam. The torque plate absorbs and distributes that force within the trim assembly. Non-locking functions (T101, T291, T301) have no cylinder in the outside lever, so no torque plate is required, and the simpler Q330-271 non-locking spring cage handles the outside lever correctly.

Falcon T Series Cylindrical Lock Catalog: Spring Cage Replacement Context

The spring cage in a Falcon T Series cylindrical lock lever is the component that provides the lever return force and holds the lever at the correct rest angle. When the spring cage fails, the lever droops below horizontal at rest, fails to return fully after operation, or requires more force than normal to depress. All three symptoms indicate spring cage wear or failure.

High-traffic doors accelerate spring cage wear because the return spring cycles every time the lever is used. Institutional applications (schools, hospitals, government buildings) where the T Series is heavily specified will see spring cage replacement as a routine service item over the multi-decade service life of the lock body.

The Q330-271 is sold as a complete kit covering the spring cage housing and associated components. It is in stock and available without lead time.

SecurityParts stocks OEM Falcon T Series cylindrical lock parts. Free shipping on orders over $450.